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Finding the Fourth Proportional to 131,597.20, 197,104.20 and 108,269.20

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Solution

The fourth proportional to 131,597.20, 197,104.20 and 108,269.20 is: 162,163.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,597.20 : 197,104.20 = 108,269.20 : x
  2. Step 2: Convert to fraction form
    131,597.20/197,104.20 = 108,269.20/x
  3. Step 3: Cross multiply
    131,597.20x = 197,104.20 × 108,269.20
  4. Step 4: Simplify right side
    131,597.20x = 21,340,314,050.64
  5. Step 5: Solve for x
    x = 21,340,314,050.64/131,597.20
  6. Step 6: Final answer
    x = 162,163.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.